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Cheap flights from Ireland to Belfast from €43

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ireland to Belfast departing on 14/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Ireland to Belfast

Recent return flight deals from Ireland to Belfast

Enter your travel dates to find the best prices.
Multiple Airlines Logo
21:55 - 08:50
DUB
-
BFS
10h 55m
1 stop
Multiple Airlines Logo
18:50 - 07:20
BFS
-
DUB
12h 30m
1 stop
€81Multiple Airlines
Mon, 13 Apr - Mon, 27 Apr
Multiple Airlines Logo
20:35 - 10:00
DUB
-
BFS
13h 25m
1 stop
Multiple Airlines Logo
08:40 - 20:10
BFS
-
DUB
11h 30m
1 stop
€83Multiple Airlines
Mon, 13 Apr - Mon, 20 Apr
Multiple Airlines Logo
21:05 - 10:00
ORK
-
BFS
12h 55m
1 stop
Multiple Airlines Logo
21:55 - 08:05
BFS
-
ORK
10h 10m
1 stop
€83Multiple Airlines
Mon, 13 Apr - Mon, 20 Apr
Multiple Airlines Logo
06:55 - 15:20
DUB
-
BFS
8h 25m
1 stop
Multiple Airlines Logo
08:40 - 17:00
BFS
-
DUB
8h 20m
1 stop
€84Multiple Airlines
Mon, 13 Apr - Mon, 20 Apr
Ryanair Logo
17:35 - 22:20
KIR
-
BFS
4h 45m
1 stop
Ryanair Logo
12:45 - 17:10
BFS
-
KIR
4h 25m
1 stop
€84Ryanair
Thu, 16 Apr - Thu, 23 Apr
Multiple Airlines Logo
15:20 - 19:50
ORK
-
BFS
4h 30m
1 stop
Multiple Airlines Logo
05:55 - 14:55
BFS
-
ORK
9h 00m
1 stop
€84Multiple Airlines
Wed, 15 Apr - Wed, 22 Apr
Multiple Airlines Logo
20:30 - 08:05
DUB
-
BFS
11h 35m
1 stop
Multiple Airlines Logo
05:55 - 12:30
BFS
-
DUB
6h 35m
1 stop
€85Multiple Airlines
Tue, 14 Apr - Tue, 21 Apr
Multiple Airlines Logo
14:35 - 21:30
ORK
-
BFS
6h 55m
1 stop
Multiple Airlines Logo
22:45 - 08:20
BFS
-
ORK
9h 35m
1 stop
€85Multiple Airlines
Mon, 13 Apr - Thu, 16 Apr
Multiple Airlines Logo
14:35 - 21:30
DUB
-
BFS
6h 55m
1 stop
Multiple Airlines Logo
05:55 - 12:30
BFS
-
DUB
6h 35m
1 stop
€86Multiple Airlines
Mon, 20 Apr - Tue, 21 Apr
Ryanair Logo
18:10 - 07:50
ORK
-
BFS
13h 40m
1 stop
Ryanair Logo
17:15 - 08:00
BFS
-
ORK
14h 45m
1 stop
€99Ryanair
Thu, 16 Apr - Mon, 20 Apr

Ryanair flights from Ireland to Belfast

Our best Ryanair deals on Ireland to Belfast flight tickets
Ryanair
16 Apr
KIR17:35Milltown (Kerry)
4h 45m
1 stop
BFS22:20Belfast Intl
23 Apr
BFS12:45Belfast Intl
4h 25m
1 stop
KIR17:10Milltown (Kerry)
€84
Ryanair
16 Apr
ORK18:10Cork
13h 40m
1 stop
BFS07:50Belfast Intl
20 Apr
BFS17:15Belfast Intl
14h 45m
1 stop
ORK08:00Cork
€99

KLM flights from Ireland to Belfast

Our best KLM deals on Ireland to Belfast flight tickets
KLM
16 Mar
DUB13:25Dublin
7h 35m
1 stop
BHD21:00Belfast City
20 Mar
BHD06:30Belfast City
6h 10m
1 stop
DUB12:40Dublin
€242
KLM
15 Mar
ORK15:40Cork
25h 10m
2 stops
BHD16:50Belfast City
22 Mar
BHD06:30Belfast City
4h 15m
1 stop
ORK10:45Cork
€318
KLM
15 Mar
ORK06:00Cork
15h 00m
1 stop
BHD21:00Belfast City
22 Mar
BHD06:30Belfast City
4h 15m
1 stop
ORK10:45Cork
€350

momondo Fare Finder

 
Customise your flight search to find flights from Ireland to Belfast that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 13,528 searches. Data last updated 3 March 2026.
Use the filters below to find and compare flights from Ireland to Belfast that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Mon 13/4

21:55-08:50

1 stop10h 55m

Belfast Intl

Mon 27/4

18:50-07:20

1 stop12h 30m

€81

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Mon 13/4

20:35-10:00

1 stop13h 25m

Belfast Intl

Mon 20/4

08:40-20:10

1 stop11h 30m

€83

CorkBelfast

ORK - BFS

ORKBFS

Cork

Mon 13/4

21:05-10:00

1 stop12h 55m

Belfast Intl

Mon 20/4

21:55-08:05

1 stop10h 10m

€83

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Mon 13/4

06:55-15:20

1 stop8h 25m

Belfast Intl

Mon 20/4

08:40-17:00

1 stop8h 20m

€84

Milltown (Kerry)Belfast

KIR - BFS

KIRBFS

Milltown (Kerry)

Thu 16/4

17:35-22:20

1 stop4h 45m

Belfast Intl

Thu 23/4

12:45-17:10

1 stop4h 25m

€84

CorkBelfast

ORK - BFS

ORKBFS

Cork

Wed 15/4

15:20-19:50

1 stop4h 30m

Belfast Intl

Wed 22/4

05:55-14:55

1 stop9h 00m

€84

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Tue 14/4

20:30-08:05

1 stop11h 35m

Belfast Intl

Tue 21/4

05:55-12:30

1 stop6h 35m

€85

CorkBelfast

ORK - BFS

ORKBFS

Cork

Mon 13/4

14:35-21:30

1 stop6h 55m

Belfast Intl

Thu 16/4

22:45-08:20

1 stop9h 35m

€85

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Mon 20/4

14:35-21:30

1 stop6h 55m

Belfast Intl

Tue 21/4

05:55-12:30

1 stop6h 35m

€86

CorkBelfast

ORK - BFS

ORKBFS

Cork

Thu 16/4

18:10-07:50

1 stop13h 40m

Belfast Intl

Mon 20/4

17:15-08:00

1 stop14h 45m

€99

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Belfast from

How to get the cheapest flight ticket from Ireland to Belfast

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Ireland to Belfast?

Ryanair and Aer Lingus are the most popular carriers operating from Ireland to Belfast

Cheap Ireland to Belfast flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ireland to Belfast

Fastest flight time

4h 00m

Direct flights

None
The fastest flight from Ireland to Belfast takes 4h 00m
There are no direct flights from Ireland to Belfast. There are no popular flight routes from Ireland to Belfast.
Search flight deals

  • When did momondo last update prices for flights from Ireland to Belfast?

    Prices for flights from Ireland to Belfast are refreshed on a daily basis.

  • How many operators does momondo search for flights from Ireland to Belfast?

  • How old do you have to be to fly from Ireland to Belfast?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Ireland to Belfast.

  • What documentation or ID do you need to fly to Belfast?

    The required travel and health documents for your Belfast trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's licence and a passport valid for six months after your intended arrival at Belfast. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Ireland to Belfast

Compare and see reviews for airlines that fly from Ireland to Belfast with momondo
Airline
Rating
Free Cancellation
Price
British AirwaysPriceFrom €259Free CancellationRating
6.7
7,773 reviews
Search British Airways flights

Why use momondo?

Why should I use momondo to find a flight deal from Ireland to Belfast?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Ireland to Belfast . Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Ireland to Belfast with flexible booking policies on momondo?

Yes. All flights to Belfast from Ireland on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Ireland to Belfast?

Once all potential Ireland to Belfast flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Ireland to Belfast right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Ireland to Belfast now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Belfast and let you know when they change.

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Find better results for your trip to the United Kingdom

Fly into one of these airports located in Belfast

Airports listed have a maximum distance of 19.6 km from Belfast
Belfast Intl Airport
Belfast City Airport